1972 in science

extra second inserted or removed to keep civil time in sync with the Earth's rotation

study on delayed gratification by psychologist Walter Mischel

apparent mystery that the early Earth seems to have had liquid water, even though the young Sun was less bright, thus presumably completely freezing the Earth

meteoroid

overview of natural science-related events during the year of 1972

20th-century total solar eclipse

20th-century annular solar eclipse

mathematical theorem

powerful series of solar storms